Xylem 160031 WC12-20B Watchman Condensate Pump Unit 1/3 HP 14 Gallon Cast Iron

The Xylem 160031 is a Watchman WC12-20B Cast Iron Simplex Condensate Pump designed to efficiently collect and return condensate to the boiler in HVAC steam heating systems. This professional-grade unit is ideal for residential, commercial, institutional, and industrial applications.

Key Specifications:

• 1/3 HP, 3450 RPM, 115v single phase motor
• 14 gallon tank capacity with 18 GPM flow rate at 20 PSI
• Rated for 12,000 EDR systems
• 3/4" NPT connection

Construction & Features:

• Cast iron receiver warranted for 20 years against corrosion failure
• Close-coupled centrifugal pump with bronze impeller, bronze wearing ring, and carbon/ceramic mechanical seal rated to 250°F
• Vertically mounted drip-proof ball bearing motor with built-in overload protection and stainless steel shaft
• Low inlet height for ease of installation
• Heavy-duty, double pole, externally adjustable float switch

Operation: As condensate flows into the receiver tank and fills with water, the float switch assembly rises and signals the motor to start pumping. When the float drops with the lower water level and breaks contact on the switch, the pump shuts off. This automatic operation ensures efficient condensate management without manual intervention.

The Xylem/Hoffman Specialty Watchman Series is factory tested as a complete unit and can be field converted from 115V to 230V single phase operation. This simplex condensate unit represents proven, reliable design for demanding steam heating and industrial processing applications.